Unitoolz VFX Useful VFX utils for Unity in C# Installation instructions Open your project manifest file (MyProject/Packages/manifest.json). Add "com.rsg.promises": "https://github.com/debox-dev/RSG_Promises.git" to the dependencies list. Add "com.debox.unitoolz.tweener": "https://github.com/debox-dev/Unitoolz_TWeener.git" to the dependencies list. Open or focus on Unity Editor to resolve packages. Requirements Unity 2019 or higher.